Bowling pin



H. J. BLUHM BOWLING PIN Nov. 19, 1929.

Filed Feb. 16, 1925 Patented Nev; 19,1929

, UNITED STATES PATENT oFFicE HAROLD J'. BLUHiI, lOl' MUSKEGON HEIGHTS, MICHIGAN, SIGNOR TO THE BRUNS- WICK-BALKE-COLLENDEB COMPANY, OF WILMINGTON, DELAWARE, A CORPORA- TION 0F DELAWARE BOWLING' PIN appunti mea february This invention relates to bowlin g pins, and has for its object to provide a and substantial bowling pin which can be made to conform to standard regulations as to size, shape and weight,- which will not crack, split or splinter in actual use, and which will give a good sound when struck by a bowlinr ball or by other pins.

Further objects are to provide a pin which will have a smooth surface and an attractive appearance, 'which will not chi or wear off quickly at the base, which will not break easily at the neck, whichcan be madeat comparatively low cost, and which will give etter service than all-wood pins and be more satisfactory to players.

My invention relates to pins made of a plastic composition in the form of a shell or as a coverin for a core of any suitable construction an material and its object is to rovide a plastic composition which will r ucc a stronger and more substantial bow 'ng pinthan has been customar with plastic coinpositions heretofore use for that purpose.

It is understood, of course, that my iinproved plastic composition can be utilized 1n making bowling'pins of many varieties as to structure. I have selected onesimple form of shell and an improved form of that shell, to illustrate my invention, but without limiting the invention to these particular structures.

In the accompanying drawing,

Fig. 1 shows a bowling pin in the form of a hollow shell. v

Fi 2 also shows a bowling pin in the forin of a ollow shell with a neck relatively softerthan the body and the head.

I havek found it satisfactory to provide a` lastic composition consistin of a hard ru ber compound for stock of w ich the in is made, and I add fiber to the compoun to increase the stren h of the lpin. l I have found that cotton er and sisa fiber may be satisfactorily used, but I prefer the cotton fiber because it gives better results, and I may use any fiber equivalent or substantiall equivalent to cotton fiber or sisal fiber, whic will give satisfactory results.

The addition of the ber to the compound I 1e, mais.- semi No. 9,515.

provides a stock which produces a bowling pin having -greater strength than plastic composition pins heretofore made. The ber .constitutes a finely divided and widely distributed reinforcing and stren theiiing binder which increases the strengt ofthe pin and likewise increases its resistance to the lows and rough usa e to which bowling pins are subjected, and w ich might otherwise result in injury to the pin. v

My inventlon may be embodied in a shell of the simple form shown in Fig. 1 or of the form shown in Fig. 2, wherein the neck 3 is softer than the body 4 and head 5, as more full set forth in my com a ion application iledy concurrently herewitli. be rovided with a core of an terial and construction or the s ell itself may have reinforcements molded thereon, and it will be understood that I do not limit the iiivention to use with shells of any articular kind, but desire to cover it broa y for the manufacture of bowling pins of any kind, shape'and constructiomwithin the scope of the following claims.

I claim:

1. A bowlin pin having a hard bod portion and a flexi le neck ortion said nec portion being made of a ru ber com osition and reinforced by fibre incorporate therein.

2. A bowling lin having a body portion made of hard rub er composition and a neck portion made of relatively soft rubber composition bothl of said portions being reinorced b bre incorporated therein. y

8. A s ell-like bowling pin having a hollow interior and comprisin a body portion made of a relatively hard ru ber composition and a neck portion made of a relatively soft rubber compositiorboth of said portions'being re incor orated therein.

The shell may suitable ma- 

